The "Technology Connections" youtube channel recently discussed awnings too. (And it had more or less the same message as this blog.)
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The classic one is the single hose. There are dual hose models.
https://www.menards.com/main/heating-cooling/air-conditioner...
With the installation instructions https://cdn.menardc.com/main/items/media/LUMAC001/Install_In... on page 11 you can see two sets of air inlets - one for the air exchange with outside, and one for the air exchange inside.